|
| 1 | +# -------------------------------- Input data ---------------------------------------- # |
| 2 | +import os, pathfinding |
| 3 | + |
| 4 | +from complex_utils import * |
| 5 | + |
| 6 | +test_data = {} |
| 7 | + |
| 8 | +test = 1 |
| 9 | +test_data[test] = { |
| 10 | + "input": """....# |
| 11 | +#..#. |
| 12 | +#..## |
| 13 | +..#.. |
| 14 | +#....""", |
| 15 | + "expected": ["2129920", "99"], |
| 16 | +} |
| 17 | + |
| 18 | +test = "real" |
| 19 | +input_file = os.path.join( |
| 20 | + os.path.dirname(__file__), |
| 21 | + "Inputs", |
| 22 | + os.path.basename(__file__).replace(".py", ".txt"), |
| 23 | +) |
| 24 | +test_data[test] = { |
| 25 | + "input": open(input_file, "r+").read(), |
| 26 | + "expected": ["20751345", "1983"], |
| 27 | +} |
| 28 | + |
| 29 | +# -------------------------------- Control program execution ------------------------- # |
| 30 | + |
| 31 | +case_to_test = "real" |
| 32 | +part_to_test = 2 |
| 33 | + |
| 34 | +# -------------------------------- Initialize some variables ------------------------- # |
| 35 | + |
| 36 | +puzzle_input = test_data[case_to_test]["input"] |
| 37 | +puzzle_expected_result = test_data[case_to_test]["expected"][part_to_test - 1] |
| 38 | +puzzle_actual_result = "Unknown" |
| 39 | + |
| 40 | + |
| 41 | +# -------------------------------- Actual code execution ----------------------------- # |
| 42 | + |
| 43 | + |
| 44 | +def grid_to_vertices(self, grid): |
| 45 | + self.vertices = {} |
| 46 | + y = 0 |
| 47 | + for line in grid.splitlines(): |
| 48 | + for x in range(len(line)): |
| 49 | + self.vertices[x - y * j] = line[x] |
| 50 | + y += 1 |
| 51 | + |
| 52 | + for source in self.vertices: |
| 53 | + for direction in directions_straight: |
| 54 | + target = source + direction |
| 55 | + if target in self.vertices: |
| 56 | + if source in self.edges: |
| 57 | + self.edges[source].append(target) |
| 58 | + else: |
| 59 | + self.edges[source] = [target] |
| 60 | + |
| 61 | + return True |
| 62 | + |
| 63 | + |
| 64 | +pathfinding.Graph.grid_to_vertices = grid_to_vertices |
| 65 | + |
| 66 | + |
| 67 | +def biodiversity_rating(self): |
| 68 | + rating = 0 |
| 69 | + for y in range(int(min_imag(self.vertices)), int(max_imag(self.vertices) + 1)): |
| 70 | + for x in range(int(min_real(self.vertices)), int(max_real(self.vertices) + 1)): |
| 71 | + if self.vertices[x + y * j] == "#": |
| 72 | + rating += pow(2, -y * (max_real(self.vertices) + 1) + x) |
| 73 | + |
| 74 | + return int(rating) |
| 75 | + |
| 76 | + |
| 77 | +pathfinding.Graph.biodiversity_rating = biodiversity_rating |
| 78 | + |
| 79 | + |
| 80 | +if part_to_test == 1: |
| 81 | + empty_grid = ("." * 5 + "\n") * 5 |
| 82 | + area = pathfinding.Graph() |
| 83 | + new_area = pathfinding.Graph() |
| 84 | + area.grid_to_vertices(puzzle_input) |
| 85 | + |
| 86 | + previous_ratings = [] |
| 87 | + while area.biodiversity_rating() not in previous_ratings: |
| 88 | + previous_ratings.append(area.biodiversity_rating()) |
| 89 | + new_area.grid_to_vertices(empty_grid) |
| 90 | + for position in area.vertices: |
| 91 | + if area.vertices[position] == "#": |
| 92 | + living_neighbors = len( |
| 93 | + [ |
| 94 | + neighbor |
| 95 | + for neighbor in area.neighbors(position) |
| 96 | + if area.vertices[neighbor] == "#" |
| 97 | + ] |
| 98 | + ) |
| 99 | + if living_neighbors == 1: |
| 100 | + new_area.vertices[position] = "#" |
| 101 | + else: |
| 102 | + new_area.vertices[position] = "." |
| 103 | + else: |
| 104 | + living_neighbors = len( |
| 105 | + [ |
| 106 | + neighbor |
| 107 | + for neighbor in area.neighbors(position) |
| 108 | + if area.vertices[neighbor] == "#" |
| 109 | + ] |
| 110 | + ) |
| 111 | + if living_neighbors in (1, 2): |
| 112 | + new_area.vertices[position] = "#" |
| 113 | + else: |
| 114 | + new_area.vertices[position] = "." |
| 115 | + |
| 116 | + area.vertices = new_area.vertices.copy() |
| 117 | + |
| 118 | + puzzle_actual_result = area.biodiversity_rating() |
| 119 | + |
| 120 | +else: |
| 121 | + |
| 122 | + def neighbors(self, vertex): |
| 123 | + neighbors = [] |
| 124 | + position, level = vertex |
| 125 | + for dir in directions_straight: |
| 126 | + if (position + dir, level) in self.vertices: |
| 127 | + neighbors.append((position + dir, level)) |
| 128 | + |
| 129 | + # Connection to lower (outside) levels |
| 130 | + if position.imag == 0: |
| 131 | + neighbors.append((2 - 1 * j, level - 1)) |
| 132 | + elif position.imag == -4: |
| 133 | + neighbors.append((2 - 3 * j, level - 1)) |
| 134 | + if position.real == 0: |
| 135 | + neighbors.append((1 - 2 * j, level - 1)) |
| 136 | + elif position.real == 4: |
| 137 | + neighbors.append((3 - 2 * j, level - 1)) |
| 138 | + |
| 139 | + # Connection to higher (inside) levels |
| 140 | + if position == 2 - 1 * j: |
| 141 | + neighbors += [(x, level + 1) for x in range(5)] |
| 142 | + elif position == 2 - 3 * j: |
| 143 | + neighbors += [(x - 4 * j, level + 1) for x in range(5)] |
| 144 | + elif position == 1 - 2 * j: |
| 145 | + neighbors += [(-y * j, level + 1) for y in range(5)] |
| 146 | + elif position == 3 - 2 * j: |
| 147 | + neighbors += [(4 - y * j, level + 1) for y in range(5)] |
| 148 | + |
| 149 | + return neighbors |
| 150 | + |
| 151 | + pathfinding.Graph.neighbors = neighbors |
| 152 | + |
| 153 | + empty_grid = ("." * 5 + "\n") * 5 |
| 154 | + area = pathfinding.Graph() |
| 155 | + area.grid_to_vertices(puzzle_input) |
| 156 | + area.add_walls([2 - 2 * j]) |
| 157 | + |
| 158 | + nb_minutes = 200 if case_to_test == "real" else 10 |
| 159 | + |
| 160 | + recursive = pathfinding.Graph() |
| 161 | + recursive.vertices = { |
| 162 | + (position, level): "." |
| 163 | + for position in area.vertices |
| 164 | + for level in range(-nb_minutes // 2, nb_minutes // 2 + 1) |
| 165 | + } |
| 166 | + |
| 167 | + recursive.vertices.update( |
| 168 | + {(position, 0): area.vertices[position] for position in area.vertices} |
| 169 | + ) |
| 170 | + |
| 171 | + for generation in range(nb_minutes): |
| 172 | + new_grids = pathfinding.Graph() |
| 173 | + new_grids.vertices = {} |
| 174 | + for position in recursive.vertices: |
| 175 | + if recursive.vertices[position] == "#": |
| 176 | + living_neighbors = len( |
| 177 | + [ |
| 178 | + neighbor |
| 179 | + for neighbor in recursive.neighbors(position) |
| 180 | + if recursive.vertices.get(neighbor, ".") == "#" |
| 181 | + ] |
| 182 | + ) |
| 183 | + if living_neighbors == 1: |
| 184 | + new_grids.vertices[position] = "#" |
| 185 | + else: |
| 186 | + new_grids.vertices[position] = "." |
| 187 | + else: |
| 188 | + living_neighbors = len( |
| 189 | + [ |
| 190 | + neighbor |
| 191 | + for neighbor in recursive.neighbors(position) |
| 192 | + if recursive.vertices.get(neighbor, ".") == "#" |
| 193 | + ] |
| 194 | + ) |
| 195 | + if living_neighbors in (1, 2): |
| 196 | + new_grids.vertices[position] = "#" |
| 197 | + else: |
| 198 | + new_grids.vertices[position] = "." |
| 199 | + |
| 200 | + recursive.vertices = new_grids.vertices.copy() |
| 201 | + |
| 202 | + puzzle_actual_result = len( |
| 203 | + [x for x in recursive.vertices if recursive.vertices[x] == "#"] |
| 204 | + ) |
| 205 | + |
| 206 | + |
| 207 | +# -------------------------------- Outputs / results --------------------------------- # |
| 208 | + |
| 209 | +print("Expected result : " + str(puzzle_expected_result)) |
| 210 | +print("Actual result : " + str(puzzle_actual_result)) |
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